Submersible pump and electric motor



Dec. '28, 1937. J.- F. HALDE MAN 20,604

SUBMERSIBLE PUMP AND ELECTRIC MOTQR UNIT I Original Filed act. 4, 1934 Reiccued Dec-28,1931 Q Re. 20,604

UNITED STATESP-ATENT 0mm James Fred Haldeman, Martlnsvflle, Ind.

Original No. 2,004,866, dated June 11, 1935, Serial No. 746,919, October 4, 1934. Application for reissue February 18, 1937, Serial No. 126,528

7 Claims. (Cl; 103-.8'I)

This invention relates to a pump and electric plates 23, prior to assembly or connection to the motor ,unit designed to efllciently operate when shaft 24 are individually plated with copper, zinc submerged and for instance when used in an or any other preferred metal to resist corrosion. aquarium as a fountain, in a well for irrigating After assembly of the plated plates orlaminations 5 purposes, or otherwise. 23 on the shaft 24, such plates as a unit are again It is particularly aimed to provide a novel conplated with copper, zinc or other preferred metal. struction which will resist erosive action of the The plating is preferably efiected by electrowater to a minimum, having the stator air and deposition and is shown at 25. A suitable bearwater tight and also having the laminations of log 26 is provided in the base well [4 for the lower the armature plated with copper or other metal, end of the shaft 24 and such shaft is journaled the stator preferably being within an enclosure in a bearing 21, screw-threaded at 28 in the upper containing an insulating compound which serves end of the well l4, in a-water tight manner. The to conduct and dissipate the heat from the shaft 24 extends above the bearing 21 so as to motor. drive the pump assembly.

It is" also aimed to provide a novel pumping An annular plate or disk 29 has the upper ends construction and casing in association with the of the bolts l1 passing removably therethrough electric motor. and said upper ends of the bolts l1 also remov- The more specific objects and advantages will ably pass through a base flange 20 of a pump become apparent from a consideration of the casing 3!, nuts 32 being screwed on the upper description following taken in connection with ends of .the bolts and tightened against the accompanying drawing illustrating an operative flange 30. Said casing includes a chamber 33, in embodiment. which are located piston vanes 34 attached to Insaid drawing:- the upper end of the aforesaid shaft 24 so as to Figure 1 is a substantially central vertical secform the pump. It will be noted that the plate tional view through the unit or assembly. 29 extends inwardly under the pump chamber Figure 2 is a horizontal sectional view taken 33, having an enlarged central opening at 36 so on the line 2-2 of Figure '1. that water may pass into the pump chamber from Figure 3 is a detail elevation of the pump the space 31, between the top wall of casing l0 8- V 4 and the plate 29', due to the spacing effected by Figure 4 is a plan view of said casing and. nuts l9. p

Flgure5isa fragmentary elevation, partly broken .The side wall of the pump chamber is peraway disclosing the construction of the motor iorated as at 38 so that the water may leave the armature. same and the casing has integral therewith an Referring specifically to the drawing wherein upper hollow section 29, perforated at 40, so that like reference characters designate like or similar discharging water may enter the perforations and parts, an air and water tight, metallic base or flow through a discharge pipe 4|, casing 15 P d d at "I Co ing t e tato H Said discharge pipe 4| is screw-threaded as at of the motor. This stator comprises a field core 42 to the upper end of the casing part 39. Beand associated coils l2 which surround a centween the base 43 of said pipe, and a shoulder 44 tral depending well l4 forming a part of the on said section 29, a bell housing 45 is removably casing 10. The current supply wires for the fastened, which bell telescopes over but is not stator are shown at l5 and lead into the casing connected to the peripheral edge of the plate 29. I0 through any suitable-water and air tight com- .A water tight joint, howeve is maintained pression fitting as at l6. Said field core I2 is through the contact of said peripheral edge of held in place by a suitable number of bolts l1 plate 29 with the interior wall of bell housing 45., 45 which pass therethrough, and .which'are secured Such bell housing 45 extends below the plate 29, tothe upper wall of casing ID by, means of nuts flaring outwardly at its lower edge. so as not to l8 and Ill, threaded on the bolts and engaging close the passageway 21. opposite sides of said wall. The heads 20 of the It is to be noted that the electric motor parts bolts are lowermost so that the core will rest shown are substantially the same as are used in thereon; "i I electric motors of the conventional shaded pole h casing aside from e l is filled alternatingcun'ent induction motor, being modiwitha suitable compound-2| so asto conduct the fled, however, as previously described to accomheat away from the core and dissipate-it, such modate use in the present construction, particucompound for instance being of coal tar or aslarly as regards the mounting of the core II, the phaltic base. plating o! the rotor, the mounting of the rotor The rotor of the motor 22 comprises an armaand the accommodation of the compound 2|. ture made up of lamin tions 22 carried by a ver- In the use ofthe device, the impeller or piston tical shaf-t ll, the latter being made of any suitaiforded by the blades 34, will draw fluid, when able rust-resisting;,mtal .Said laminations or the unit or assembly-is submerged, through pasthrough ports 1. A device 01' the classdescribed comprising a casing having a chamber, an impeller in said chamber, a discharge pipe leading from the easing, said discharge pipe having an inlet, said chamber having an outlet opening, a hood secured over said casing by said discharge pipe to confine the discharge from the chamber and" cause itto pass into the inlet of the discharge pipe, a plate adjacent the bottom of the hood surrounded by the hood and having an opening constituting an inlet for the chamber, a base having anelectric motor therein, the armature.

shaft or the motor extending above the base and through said plate opening and driving'the impeller, bolts connecting the field core oi the motor,-said casing andplate together, and means surrounding said bolts.

2. A device of. the class described comprising a casing having a chamber, an impeller in said chamber, a discharge pipe leading from the easing, said discharge pipe having an inlet, said chamber having; an outlet opening, a hood sespacing the plate and easing from the base and cured over said casing by said discharge pipe to confine the discharge from the chamber and cause it to pass into'the inlet of the discharge pipe, a plate adjacent the'bottom oi the hood surrounded by the hood and having an opening constituting an inlet for the chamber, a base having an electric motor therein, the armature shaft of the motor extending above the base and I surrounding said bolts, said base having a cen--.

means connecting the through said plate opening and driving the im peller, boltsconnecting the field core 01' the motor, said casing and plate togethenand means spacing the plate-and casing from the base and tral well in which the rotor is disposed, and a removable bearing for the rotor shaft screwthreaded in the upperend-of the well.

' 3. A device of the class described comprising a casingv having a chamber, an impeller in said chamber, a: discharge pipe leadingfrom the casing, said discharge pipe having an inlet, said chamber having an outlet; opening, a hood secured over said casing by said discharge pipe to confine the discharge from the chamber and cause it to pass into the inlet of the v e pipe, a plate adjacent the bottom'ot the hood surrounded by the hood. constituting an inlet for the chamber, a base having an electric motor thereimmeans spacing said plate and base,- the 4 motor extending above the base and through said-plate opening and fleld core oi'the motor, said casing and plate together. a

4. In a device of the class described, the combination with a supporting base unit including a motor enclosed therein with an upwardly extending shaft having one end exposed above the base of an'apertured superposed-plate rigid with the unit but in spaced relation thereto, a'superposed N flanged pump chamber forming. member rigid with the plate and including a side opening disharge. a pump impeller in the pump chamber ripheraliy enveloping the pumpchaln ber, in-

and having an penin driving the impeller, and

axial with the motor armature shaft-oi the j motor enclosed the same teriorly ensuing the and forming an outer chamber therewith, tubular extension means carried by the" member hav-' ing a lateral intake to the outer chamber and a longitudinal discharge, said tubular extension means supporting said housing, and tubular means coaxial with the longitudinal discharge securing the extension means and housing together.

5. In a device of the class described, the combination with a supporting base unit including a therein with an upwardly extending shait having one end exposed above the base of an apertured superposed plate rigid with the unit but in spaced relation thereto, a superposed flanged pump chamber forming member rigid with the plate and including a side opening discharge, a pump impeller in the pump chamber secured to the shaft end therein, a housing peripherally enveloping the pump chamber, inteperipheral edge 01 the plate means supporting said housing, and tubular 1 means coaxial with the longitudinal discharge securing the extension means and housing together, the tubular extension means having a- ;shoulder adjacent that end remote from the pump chamber for supporting said housing, said shouldered end being threaded and the tubular means having threaded connection therewith.

6. In a device 01' the class described, a supporting base unit including a motor enclosed therein with an upwardly extending shaft, a

housing supported in spaced relation to said unit, a tubular discharge extending upwardly from the housing and centrally thereof and coshait axis, a pump chamber within the housing and including a lateral discharge into the housing, the pump chamber having a central intake immediately above the base unit and through which the'upwardlyi extending shaft extends, a pump member in' said-chamber and mounted upon-said shaft therein, another chamber within-the housing and having a lateral intake into the housing for receiving therefrom liquid discharged into the housing from the pump another chamber longitudinally chamber, said discharging tothe tubular discharge, one wall of the pump chamber extending laterally beyond ing for closing chamber having nested relation within said housing through said plate opcning'anddrivin'g the im peller, bolts field tor, said casing come! the moand plate together, and

and having engagement with the hous-.

the housing chamber, said pump.

described comprising from the base and 

